258157 has 2 divisors, whose sum is σ = 258158. Its totient is φ = 258156.

The previous prime is 258143. The next prime is 258161. The reversal of 258157 is 751852.

258157 is an esthetic number in base 7, because in such base its adjacent digits differ by 1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203401 + 54756 = 451^2 + 234^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-258157 is a prime.

It is a nialpdrome in base 9.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129078 + 129079.

It is an arithmetic number, because the mean of its divisors is an integer number (129079).

2²⁵⁸¹⁵⁷ is an apocalyptic number.

It is an amenable number.

258157 is a deficient number, since it is larger than the sum of its proper divisors (1).

258157 is an equidigital number, since it uses as much as digits as its factorization.

258157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2800, while the sum is 28.

The square root of 258157 is about 508.0915271878. The cubic root of 258157 is about 63.6738781277.

The spelling of 258157 in words is "two hundred fifty-eight thousand, one hundred fifty-seven".